Re:

oss=> create table test (id box null);

oss=> insert into test values ('1,1,1,1');
INSERT 9697510 1
oss=> insert into test values (NULL);
INSERT 9697511 1
oss=> select * from test;
id
-------------
(1,1),(1,1)

(2 rows)

oss=> select * from test where id is not null;
id
-------------
(1,1),(1,1)
(1 row)

oss=> select version();
version
-------------------------------------------------------------
PostgreSQL 7.3.2 on i686-pc-linux-gnu, compiled by GCC 2.96
(1 row)

HTH
Darren

On Fri, 19 Sep 2003 dschmidt(at)lexmark(dot)com wrote:

>
> Does anybody know how to detect a NULL in a geometric box type?
>
> When I execute the following sql statement (coords is a box type)
> autotest=# select coords from dlg_control limit 1
> autotest-# \g
> coords
> --------
>
> (1 row)
>
> So, I have data that contains a "NULL" in the coords column, but when I
> test on box(NULL) I don't get any data...
> autotest=# select coords from dlg_control where coords=box(NULL) limit 1
> autotest-# \g
> coords
> --------
> (0 rows)
>
> Any ideas?
> Thanks,
> Dennis
>
>
>
>
>
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--
Darren Ferguson